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TOPIC: Re:Posting your projects!

Posting your projects! 9 years 8 months ago #42

  • devteam
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Time to get the word out there and let the community know on what you're working on!

We want to hear from you so post your project, your measurements or any other tentative project idea you may have for our miniDSP kits.

We've heard from a lot of you on one on one emails, so we would hope that you could share these great ideas with our other community members!

The more we share, the more we'll all be able to educate the community on using DSP for audio applications.

Some ideas on sharing your project:
- Maybe tell us a bit more your setup such that we know how it all fits in your system
- If you want to post some pics, even better! :-) Just Add a picture by going to the "Select image file to attach" at the bottom of the Thread Editor. Once you've browsed for the pic on your drive, you need to click on the "img" button to the right of the browse button. All good?

Looking forward to seeing some new pics!

miniDSP Dev Team
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Last Edit: 9 years 7 months ago by devteam.
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Re:Posting your projects! 9 years 3 months ago #602

  • unclebuck
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Hi MiniDSP Community!

Think I have read everything there is written about the MiniDSP on the internet now! Seems to be a great product and I´m almost ready to order :)

Before I order I would like your input on the following though:

1. I would like to pair the MiniDSP board together with a highpower 2 channel Class D amp with built in SMPS. I need a small formfactor and low weight since I´m building a portable music instrument combo (amp+ speaker) for mainly acoustic instruments and I´m looking for the least amount of soldering and construction work possible. B)
Is there any particular amp that goes extra well with the MiniDSP board? A Perfect match? (The miniamp from MiniDSP is probably to weak for a live music situation otherwise that would have been great)

I had something in mind like this one:

B&O ICEPOWER 125ASX2
2x125W or 1x500W @ 0.01% THD+N 1kHz, 4ohm
Dimensions ; 80 x 160 x 33mm (3,2 x 6,4 x 1,3")
Power supply : 115V - 230V AC


2. Can anyone recommend a cheap simple mic preamp board that would work well with the MiniDSP? If possible with EQ to be able to adjust the Combo´s tonality "live". Would rev A or B be the best match with a microphone that needs alot of gain? Do a need a preamp at all? Again small formfactor/weight and a minimum of hassle is key here.

All input is greatly appreciated! Thanks!
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Re:Posting your projects! 9 years 3 months ago #622

  • devteam
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Hello,

Neat project and looking forward to seeing it together. A miniLIVE sound rig sounds like a good name for it.

You should maybe move your thread to a new thread in the Hifi section. That would be a better place to start gathering ideas about your project.

B&O modules are obviously nice modules but I'm sure that others in the community can pitch in with their current choice of AMP modules.
As for the mic pre, sorry but no recommendation for an off the shelf module. I'm sure that there must be one out there.

miniDSP Goers, anybody got an idea?

DevTeam
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Re:Posting your projects! 9 years 3 months ago #625

  • glt
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I got this recommendation for a mic: www.audiocircle.com/index.php?PHPSESSID=....msg788905#msg788905

I too am thinking to use a miniDSP with classD (or T). Right now I'm leaning towards the Hypex and Audiopower.it PS. But some of the cheaper Class T are also appealing.

The Icepower seem to be only available to OEMs, where can you purchase them?
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Re:Posting your projects! 9 years 3 months ago #632

  • unclebuck
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Thanks for the feedback!
Just ordered the minidsp and software! :)

B&O amps can be found if you search the used sections of audioforums for example, but you can not order them directly from B&O, or so people say. You probably could if you just took the time to talk to them and maybe present a commercial project or an idea or a commercial project... ;) Anyways a got a small company in the music biz.. If I dont get what I need in the used sections I will try them directly.

Still open for suggestions regarding mic-preamp (not a mic as suggested above, but thanks though).
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Re:Posting your projects! 9 years 3 months ago #635

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Glad to have you as part of the miniDSP community! We're looking for your project pics.. :-)

I forgot about Eliot Sound. Have a look at his kits, they are typically very well documented and his website is a goldmine of information.

sound.westhost.com/project66.htm

Good luck!
MiniDSP, building a DIY DSP community one board at a time.
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Re:Posting your projects! 9 years 2 months ago #821

  • unclebuck
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Hi again! I´m about to order some electrical components and connectors for my hmmm "project". As far as amp goes, everything is on track, thats all I can say ;)

I would like to order an expansion connector. I need it to easily connect the analog volume pot to the minidsp-board in a smooth way. Could you supply me with the name of such a connector? Is it possible to find at farnell.com ? farnell no?
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Re:Posting your projects! 9 years 2 months ago #824

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Hi,

Glad to hear that you're making progress on your project.
You can either make a connection on the underside of the board (doesn't require anything but a soldering iron. Just be careful not to create any shorts or simply get a 2.5mm male to male breakaway headers. I don't know on farnell (never liked to find a part on their site), but see an equivalent on mouser

Just needs to be 2.54mm pitch.
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Re:Posting your projects! 9 years 2 months ago #826

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Thank you!

:)
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Re:Posting your projects! 8 years 8 months ago #1678

  • KAMIKAZE
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www.vegalab.ru/forum/showthread.php/4424...а-с-фильтром-miniDSP

kamikazeua.narod.ru

System not completed yet, need measurements and time :)
Also, my amplifiers on full volume play well, but SPL of drivers of cause different. So I need aling SPL. To do this I need decrease gain for tweet and mid, but I want increase spl of bass driver. I have 4-way adv. plugin and only one way I found to do this - it's EQ with gain 3db on 19917Hz with Q=0.5

Any other idea?
Last Edit: 8 years 8 months ago by KAMIKAZE.
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Re:Posting your projects! 8 years 8 months ago #1682

  • ljud
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Increase input level + attenuate the other 2 lines.
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Re:Posting your projects! 8 years 8 months ago #1684

  • KAMIKAZE
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SOurce is PC, well I can do this, but I do not want depending volume via PC, because I maybe want connect some other source like ipod. So maybe EQ not so bad to bass driver...
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Re:Posting your projects! 8 years 8 months ago #1693

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@Kamikaze,

Please start a new thread in the project folder and do not use this general thread for your project thanks.

System tuning and gain structure should actually be done as follow:
- miniDSP levels all at max (input and outputs), with maybe some minor adjustments on the output gain but minor is better
- Level adjustment between say bass to HF should be done at the amplifier. (Not at the source). i.e. tune the level by slowly increasing your amp volume control.

The reason is simple, it's because all converters and electronic works better with a high Signal to Noise ratio. If you feed a tiny signal (attenuated in digital or Analog domain) to an amplifier with a high gain, it's simply not optimizing the Signal to Noise ratio. That simple...
By the way, 90% of systems (pro A/V or Hifi) are tuned as per what I just described above for your information.

Hope this info helps.

DevTeam
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Re:Posting your projects! 8 years 8 months ago #1745

  • DQ828
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If you find out how I can buy ICEPOWER modules please let me know. I will post my MiniDSP project when it's finished.

David
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Re:Posting your projects! 8 years 3 months ago #2667

  • unclebuck
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Icepower modules are considered among the best of modules, and they are very easy to work with, plug n play. They are beautiful just to look at :) Though they are not to be sold in any way to private consumers. If you are planning on a commercial project you could pitch the idea to the kind people working on sales on b&o and maybe they will grant you an evaluation kit. But you have to really be serious on the part of a commercial business plan. And I´m sure they reject most of those requests.

You can also sometimes find these modules on the second hand market, even though they are not supposed to be traded to private persons.

Regards!
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